Device for cleaning waste pipes



May 28, 1940.

T. MOSLEY DEVICE FOR CLEANING WASTE PIPES Filed Jan. 22, 1940 IINVENTOR.

A TTORNEYS.

Patented May 28, 1940 UNITED STATES PATENT OFFICE Thomas Mosley, Lawton,Okla.

Application January 22, 1940, Serial No. 315,081

3 Claims.

Generally stated, this invention aims to provide novel means for forcingan obstruction out of the waste pipe of a sink, by hydraulic pressure.More specifically, one object of the inventionis to 5 provide novelmeans for securing the pressure conduit to a faucet, and another objectof the invention is to provide novel means for anchoring the lower endof the conduit in the outlet of a sink.

Fig. 1 shows in elevation, a device constructed in accordance with theinvention, assembled with a sink and spigot, some parts being brokenaway, and other parts being in section;

Figs. 2, 3 and 4 are cross sections taken, respectively, on the lines2--2, 33 and 4 4 of Fig. l.

The numeral I marks a sink into which a faucet 2 discharges, a tubularoutlet 3 being secured in the bottom of the sink, the outlet 3 having atop 20 flange 4, and there being a screen or grating 5 fixed in theoutlet 3.

The numeral 6 designates a pressure conduit, including a flexible hose1, the upper end of which may be slipped over the spout of the faucet 252. A water tight joint between the hose 1 and the spout oi the faucet 2is secured through the instrumentality of a two part clamp, theconstituent members of which are united by a pivot bolt 9 or otherwise.

One member of the clamp 8 has a short arm I0, and the other member ofthe clamp has a long arm II, terminating in a point. The clamp 8 istightened about the hose 1 by means of a wing bolt l2 inthe arms l andII.

The clamp 8 holds the hose I on the spout of the faucet 2 tightly enoughto make an hermetic joint, but, in many instances, not securely enoughto keep the hose in place, because there is a heavy pressure in the hoseuntil the obstruction in the outlet of the sink is dislodged. In orderto hold the parts securely assembled, one end of a flexible element M,such as a chain, is engaged with the pivot bolt 9, between the membersof the clamp 8, the chain being extended over the faucet 2, and one linkofthe chain being engaged with the point of the long arm II of onemember of the clamp 8.

The upper end of a rigid tube I5, generally made of metal, is secured inthe lower end of the hose I and at its lower end, the tube is providedwith depending, oppositely extending claws I6, adapted to be engagedwith the screen 5 in the outlet 3. This is done by lowering the tube I5to the position of Fig. 1, and giving it a partial turn.

The tube l5 can slide through a rigid, disklike foot l1, below which islocated a renewable, compressible gasket I9.v

An inverted, cup-shaped holder I8 is slidable on the tube I5 andcontains a packing 48, which prevents upward escape of water underpressure, at the place where the tube I5 passes through the foot I! andthe gasket I9.

A coiled compression spring is disposed about the tube I5, the lower endof the spring finding an abutment against the holder l8 on the foot I7and exerting pressure on the foot IT. The upper end of the spring 20engages an abutment disk 2I, slidable on the tube l5. Opposed portionsof the disk 2| are turned up to form ears 22.

The numeral 23 marks a U-shaped lever, the arms of which terminate incams 24, adapted to exert pressure on the disk 2 I, between the ears 22.The ears 22 keep the arms of the lever 23 from spreading, and the lever,therefore, can be made out of light metal. The cams 24 turn on a pivotmember 25. such as a pin secured in the tube I5 and extendingthereacross. The pin 25 forms a fulcrum for the lever 23. I

The lever 23 can be turned up from the position of Fig. 1, therebyrelieving pressure on the spring 20 and the claws I6 can be hookedeasily into the screen 5. Thereafter, the lever 23 can be swung downinto the horizontal position of Fig. I, thereby putting the spring 20under increased pressure, to hold the claws I6 engaged with the grating5, to press the yieldable packing 48 in the holder I8 tightly upon thefoot I! and about the tube l5, and to press the gasket I9 tightlyagainst the flange 4 of the outlet 3, .Water tight joints beingeffected. When the faucet 2 is opened, water pressure will dislodge anobstruction in the outlet, in a well known manner.

It is to be noted that the upright portions of the claws or anchorageelements [6 are secured at 46 on the outside of the tube I5. They form,therefore, an abutment for a washer 2B slidably mounted on the tube I5.The purpose of this construction is to prevent the spring 20, the footI1, and the gasket I9 from dropping ofi the tube I5 when the device isnot in use. The claws l6 serve two purposes, in that they constitutemeans whereby the tube I5 can be assembled with the screen 5 and inthat, also, they prevent the washer 26 and parts above it from slidingoff the tube I5.

What is claimed is:

1. In a device for dislodging an obstruction from a clogged waste pipe,a pressure conduit,

pipe-engaging anchorage means on the lower portion of the conduit, asealing foot through which the conduit is slidable, a lever including acam pivotaliy mounted on the conduit, and a compression springsurrounding the conduit and interposed between the cam and the foot.

2. In a device for dislodging an obstruction from a clogged waste pipe,a pressure conduit, a sealing foot through which the conduit isslidable, an inverted, cup-shaped holder through which the conduit isslidable, a packing in the holder and engaging the foot and the conduit,to effect a tight joint where the conduit passes through the foot, acompression means movable on the conduit at the will of an operator, acompression spring interposed between said means and the holder, andpipe-engaging anchorage means on the lower portion of the conduit.

3. In a device for dislodging an obstruction from a clogged waste pipe,a pressure conduit, pipe-en agin anchorage means secured to the outsideof the lower portion of the conduit, a sealing foot through which theconduit is slidable, and a compression spring on the conduit THOMASMOSLEY.

